Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 7 · 40 questions

The fast method (Shift both): How much makes the second number round? 68 needs 2 to make 70. Add that amount to BOTH numbers. Take away the round number.

1. 1.145 − 27 =
2. 2.405 − 28 =
3. 3.116 − 37 =
4. 4.466 − 57 =
5. 5.267 − 97 =
6. 6.477 − 79 =
7. 7.482 − 47 =
8. 8.302 − 68 =
9. 9.188 − 29 =
10. 10.569 − 86 =
11. 11.253 − 96 =
12. 12.331 − 17 =
13. 13.374 − 39 =
14. 14.282 − 29 =
15. 15.110 − 86 =
16. 16.343 − 26 =
17. 17.556 − 27 =
18. 18.107 − 29 =
19. 19.434 − 56 =
20. 20.564 − 37 =
21. 21.508 − 28 =
22. 22.76 − 68 =
23. 23.164 − 89 =
24. 24.515 − 36 =
25. 25.170 − 17 =
26. 26.414 − 96 =
27. 27.314 − 96 =
28. 28.156 − 46 =
29. 29.299 − 79 =
30. 30.490 − 67 =
31. 31.321 − 76 =
32. 32.450 − 48 =
33. 33.551 − 98 =
34. 34.90 − 26 =
35. 35.182 − 37 =
36. 36.184 − 18 =
37. 37.207 − 47 =
38. 38.539 − 98 =
39. 39.137 − 67 =
40. 40.389 − 29 =

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